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Open Roads Forum  >  Truck Campers

 > DC-DC Charger Wiring Input Suggestions

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moonlitsouls

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Posted: 10/09/21 11:32am Link  |  Quote  |  Print  |  Notify Moderator

Hope all is well, I’ve attached a diagram to my truck camper , I’m going to use Anderson connections to create a detachable connection for the wires from the starter battery to the charger. Where do you guys think I should route the wire ? What’s the best way to come into the camper? Thanks a lot


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c.traveler2

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Posted: 10/09/21 09:37pm Link  |  Quote  |  Print  |  Notify Moderator

I ran my 4gauge/Anderson connection near the same place that the camper plug is at.


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Bradymydog

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Posted: 10/10/21 05:45am Link  |  Quote  |  Print  |  Notify Moderator

Living in the NE with all the salt on the road, I did not use Anderson plugs when I wired my DC-DC charger as there was no way to adequately weather seal the connectors or cable penetrations when not connected. I installed two Pollak 2 pole recepticals, one on the camper and one in the bed of the truck. Each is weather sealed and I don't have any pigtail to worry about when the camper is off the truck which is most of the time in my case. I then made a connector cable with the female connectors on each end. Works great for me, but not the least expensive solution.

I also looked into trolling motor connectors but wanted something with a higher amp rating.

https://www.etrailer.com/Wiring/Pollak/PK12801.html?feed=npn&utm_source=google&utm_medium=cpc&utm_campaign=Google%20%7C%20Shop%20-%20Wiring&adgroupid=84618835800&campaignid=1672412098&creative=394587238933&device=c&devicemodel=&feeditemid=&keyword=&loc_interest_ms=&loc_physical_ms=9001738&matchtype=&network=g&placement=&position=&gclid=Cj0KCQjwnoqLBhD4ARIsAL5JedInXyn3TtLtTAXS013RVl9eO0mH-XMJQtjQJLEBR7yN215etQmDhbMaAsxnEALw_wcB

theoldwizard1

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Posted: 10/10/21 07:32am Link  |  Quote  |  Print  |  Notify Moderator

If you have the Power Pole connectors use them. Periodically clean grease the contacts.

Kayteg1

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Posted: 10/10/21 09:25am Link  |  Quote  |  Print  |  Notify Moderator

I see pictures of carport, but no wire diagram?
Why are you using B2B charger? Do you have lithium battery?
On my Ford I was having idea of using on-board inverter to run 120V inside and use camper converter for faster charging where the small trailer wire was not adequate. But that was never important enough to me and sold the truck before doing it.





time2roll

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Posted: 10/10/21 11:06am Link  |  Quote  |  Print  |  Notify Moderator

I would use the existing charge wire and place the DC-DC charger near the battery in the TC.
20 amp rating should be sufficient.


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Kayteg1

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Posted: 10/10/21 11:36am Link  |  Quote  |  Print  |  Notify Moderator

time2roll wrote:

I would use the existing charge wire and place the DC-DC charger near the battery in the TC.
20 amp rating should be sufficient.

I think Ford has 30 amp breaker on its charge circuit, yet had a situation when deeply discharged 2 camper batteries would keep cycling the breaker and after 3 or 4 hr of driving/charging the batteries were still low.
The situation repeated when I got shore power as 40 amp converter was cycling as well and it wasn't till next late morning when finally the charge stabilize.
I researched B2B chargers for my boat project, where I add "house" batteries and have 30 amp alternator. I was hoping B2B could limit amperage to preset value, what happen to be illusion.
I finally ended with battery combiner and 20 amp automatic breaker.
All that with voltage meter on the cluster, so I will not get surprised the same way I was in the camper.

time2roll

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Posted: 10/10/21 11:48am Link  |  Quote  |  Print  |  Notify Moderator

OK that self resetting breaker is in the TC right? These self resetting breakers are a disaster waiting to happen. Get a real breaker such as Bussmann Hi-Amp of the correct rating (amazon). Probably 40-50 amp is appropriate depending on the wire size and other charging equipment.

Kayteg1

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Posted: 10/10/21 12:10pm Link  |  Quote  |  Print  |  Notify Moderator

The truck charging circuit had to have circuit breaker somewhere in fuse box.
I never really check it as it was always resetting itself eventually.
Converter doesn't have any visible circuit breaker, so it could be overheating sensor who was shutting it off.
I don't know how protection breakers can lead into disaster?
Putting 40-50 amp breaker on 30 amp wire might.

moonlitsouls

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Posted: 10/10/21 12:13pm Link  |  Quote  |  Print  |  Notify Moderator

hey guys , im using a renogy 60a dc-dc charger , and i upgraded the stock altn to 250amps , im going to put the dc-dc charger right near my existing battery bank , the part im confused about is where to mount the anderson cable to make this as simple as possible , my camper stays on the truck 95% of the time so im not too worried about water and stuff. maybe i can drill a hole in the battery bank compartment door and just leave them plugged up inside there , theres room for it

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